Deep Space Network 901 Handbook Glossary Document Owner: Approved by: Signature Provided 11/15/2016 Signature Provided 11/10/2016 Christine Chang Date Timothy T. Pham Date Support System Engineer Communications Systems Chief Engineer Prepared by: Released by: Signature Provided 11/15/2016 Signature Provided 02/10/2017 Christine Chang Date C. Chang Date Support System Engineer DSN Document Release Authority DSN No. 810-005, 901, Rev. G Issue Date: February 10, 2017 JPL D-19379; CL#17-0719 Jet Propulsion Laboratory California Institute of Technology Users must ensure that they are using the current version in DSN Telecommunications Link Design Handbook website:: http://deepspace.jpl.nasa.gov/dsndocs/810-005/ © <2017> California Institute of Technology. U.S. Government sponsorship acknowledged. 1 of 19 810-005 901, Rev. G Review Acknowledgment By signing below, the signatories acknowledge that they have reviewed this document and provided comments, if any, to the signatories on the Cover Page. Signature Provided 11/14/2016 Jeff Berner Date DSN Project Chief Engineer 2 810-005 901, Rev. G Change Log Affected Rev Issue Date Prepared by Sections or Change Summary Pages - 11/30/2000 R. Sniffin All Initial Release A 8/15/03 R. Sniffin 2 Corrected units of Boltzmann’s constant and other typographical errors. Added abbreviations for new and revised modules. B 10/7/04 R. Sniffin 2 Revised abbreviation list for new and revised modules. C 10/21/05 R. Sniffin 2 Revised abbreviation list for new and revised modules. D 10/31/2009 A. Kwok Many Replaced DSMS with DSN. Removed all references related to the 26-m stations. E 4/29/2011 C. Chang 2 Revised abbreviation list for revised modules. F 3/22/2012 C. Chang 2 Modified the abbreviation IERS G 02/10/2017 C. Chang Sections 1.1, Added terms used by various 810-005 modules. 1.2, 1.4.3, & 2 Obsoleted unused items. 3 810-005 901, Rev. G Contents Paragraph Page 1 Introduction .......................................................................................................................... 5 1.1 Purpose ..................................................................................................................... 5 1.2 Scope ........................................................................................................................ 5 1.3 Revisions .................................................................................................................. 5 1.4 Definitions ............................................................................................................... 5 1.4.1 Terms ........................................................................................................... 5 1.4.2 Abbreviations ............................................................................................... 5 1.4.3 Acronyms ..................................................................................................... 6 2 Abbreviations and Terms ..................................................................................................... 7 4 810-005 901, Rev. G 1 Introduction 1.1 Purpose The purpose of this document is to present a useful glossary of commonly used terms, abbreviations, and acronyms that are current and applicable to the Deep Space Network (DSN). 1.2 Scope This scope of this document is limited to providing terms, abbreviations, and acronyms that are used within Document 810-005 and especially those that may be different from usage in other organizations. Terms, abbreviations, and acronyms are included in this document if they meet any of the following criteria: • used within the DSN but with a meaning that may be unique to the DSN, • used within 810-005 in place of equivalent terms, abbreviations, and acronyms that may be used elsewhere, or • commonly used in the field of telecommunications engineering but not necessarily known to all users of 810-005. 1.3 Revisions This glossary will be periodically revised with changes, improvements, or additions. Usually, these revisions will be coincident with the publication of new or revised 810-005 modules that contain new or revised terminology. 1.4 Definitions The following paragraphs define the types of items that appear in this glossary and give general rules for their formation. 1.4.1 Terms A term is any word or expression that has a precise meaning in a particular field, in this case, telecommunications engineering. 1.4.2 Abbreviations 5 810-005 901, Rev. G An abbreviation is a shortened or contracted form of a word or phrase. In a strict sense, the letters are individually pronounced (for example, rpm or DSN) or the reader might visualize and pronounce the complete form of the word (for example, "assembly" for "assy" or "telemetry" for "TLM"). 1.4.3 Acronyms An acronym is a pronounceable abbreviation formed by one of two methods: (1) combining the first syllables of the key words (for example, Caltech or FORTRAN) or (2) combining the first letter and other letters, as required, from the name or key words of an organization, project, or piece of equipment (for example, LAN). 6 810-005 901, Rev. G 2 Abbreviations and Terms Abbreviation Definition or Term A A-D analog-to-digital anti-spoofing mode of operation (Global Positioning System) A/S in which the encrypted, or Y-code, is unavailable to civilian users of the system ACME Antenna Calibration and Measurement Equipment AFC automatic frequency control AFS atomic frequency standard AGC automatic gain control AIU Antenna Interface Unit The rotating but non-tilting portion of the DSN azimuth- alidade elevation antennas. AM amplitude modulation AMP amplifier AMMOS Advanced Multi-mission Operations System APID Application Process Identifier ASM attached synchronization marker atm atmospheric ATSE Antenna Test Signal Equipment AWGN additive white Gaussian noise az or AZ azimuth AZ-EL azimuth-elevation Azen Zenith Atmospheric Attenuation B B3MCD Block III Maximum Likelihood Convolutional Decoder B/W or BW bandwidth b/s Bits per second BCH Bose-Chaudhuri-Hocquenghem (code) 7 810-005 901, Rev. G Abbreviation Definition or Term BER bit error rate BET bit error tolerance Bi-φ Bi-phase Bi-φ-L Bi-phase, level Bi-φ-M Bi-phase, mark Bi-φ-S Bi-phase, space BL loop bandwidth Boltzmann’s –198.6 dBm/(Hz K) constant BP Belief Propagation bps Bits per second BPSK binary phase shift keyed BVR Block V Receiver (part of DTT Subsystem) BWG Beam Waveguide (antenna or subnet) C c speed of light, 299,792.458 km/s Category A missions within 2 million km of Earth Category B missions at distances greater than 2 million km from Earth C/A Coarse Acquisition (GPS code) CCSDS Consultative Committee for Space Data Systems CCW counter-clockwise CD cumulative distribution CDF cumulative distribution function CDSCC Canberra (Australia) Deep Space Communications Complex CFDP CCSDS file Delivery Protocol CLTU Communications Link Transmission Unit CLTUF Communications Link Transmission Unit File CMD command CONSCAN conical scanning CRC Cyclic Redundancy Check CRG Coherent Reference Generator 8 810-005 901, Rev. G Abbreviation Definition or Term cryo cryogenic CSO Cryogenic Sapphire Oscillator (frequency standard) CSS Channel-Select Synthesizer CTT Compatibility Test Trailer CV connection vector CVCDU Coded Virtual Channel Data Unit CW clockwise D D/C downconverter D/L downlink DAT Data Acquisition Terminal dB decibel(s) dBc decibel(s) with respect to carrier dBi decibel(s) with respect to isotropic dBm decibel(s) with respect to one milliwatt dBV decibel(s) with respect to one Volt dBW decibel(s) with respect to one Watt DDC Digital Downconverter DCC Downlink Channel Controller DCPC Downlink Channel Processing Cabinet DCT design control table DDC Digital Downconverter dec or DEC declination deg degree(s) ∆DOR Delta-Differential One-way Ranging DIG digitizer (assembly) DSS Media Calibration (subsystem) or Data Monitor and DMD Display (assembly) DN, dn down DOR differential one-way range DRVID differenced range versus integrated Doppler 9 810-005 901, Rev. G Abbreviation Definition or Term DSCC Deep Space Communications Complex DSG Downlink Signal Generator (a DSN Subsystem) DSN Deep Space Network DSOC Deep Space Operations Center DSS Deep Space Station DSS-13 34-m research & development antenna at Goldstone DSCC DSS-14 70-m antenna at Goldstone DSCC DSS-15 34-m HEF antenna at Goldstone DSCC DSS-24 34-m BWG antenna at Goldstone DSCC DSS-25 34-m BWG antenna at Goldstone DSCC DSS-26 34-m BWG antenna at Goldstone DSCC DSS-34 34-m BWG antenna at Canberra DSCC DSS-35 34-m BWG antenna at Canberra DSCC DSS-36 34-m BWG antenna at Canberra DSCC DSS-43 70-m antenna at Canberra DSCC DSS-54 34-m BWG antenna at Madrid DSCC DSS-55 34-m BWG antenna at Madrid DSCC DSS-63 70-m antenna at Madrid DSCC DSS-65 34-m HEF antenna at Madrid DSCC DTF Development and Test Facility DTT Downlink Tracking and Telemetry (Subsystem) DVP DSN VLBI Processor E Eb/N0 energy per bit divided by noise power spectral density EEIS End-to-End Information System EGRS extra-galactic radio source EIRP effective isotropic radiated power el, EL, elev elevation Earth Orientation Parameters (of the International Earth EOP Rotation Service [IERS]) or Earth Orientation and Polar motion 10 810-005 901, Rev. G Abbreviation Definition or Term F F/O fiber optic FER frame error rate FET field effect transistor FFT Fast Fourier transform FM frequency modulation FODA Fiber-optic Distribution Assembly FOM figure of merit FRD Frequency Reference Distribution (a DSN Assembly) FSP Full Spectrum Processing FSTL Frequency Standards